Damage and Fracture of Ductile Sheet Metals: Experiments and Numerical Simulations with New Biaxial Specimens
Damage and Fracture of Ductile Sheet Metals: Experiments and Numerical Simulations with New Biaxial Specimens
复制标题
延性金属板材的损伤和断裂：新型双轴样品的实验和数值模拟
DOI：
10.1007/978-3-319-70563-7_5
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
M. Brünig
中科院分区：
文献类型：
--
作者：
S. Gerke;M. Schmidt;M. Dirian;M. Brünig
本文采用新的实验和数值模拟方法研究了应力状态对韧性板料损伤和断裂行为的影响。这些应力状态依赖的过程的特点是不同的机制作用于微观层面上，因此，应力状态的细节，其特征在于应力三轴性和矿脉参数的关键部分的标本是感兴趣的。新设计的H-试样进行了研究相结合的数值实验程序。用数字图像相关（DIC）技术计算了试件临界区域的应变场，并与有限元模拟结果进行了比较。考虑到不同的双轴加载条件下，它是可能的，涵盖了广泛的应力三轴度和矿脉参数在拉伸，剪切和压缩域，因此，新提出的H-标本便于在不同的应力状态下的损伤和断裂的受控研究。
The paper deals with new experiments and corresponding numerical simulations to study the effect of stress state on damage and fracture behavior of ductile sheet metals. These stress-state-dependent processes are characterized by different mechanisms acting on the micro-level and, therefore, details of the stress state characterized by stress triaxiality and the Lode parameter in the critical parts of the specimens are of interest. Newly designed H-specimens are studied in a combined numerical-experimental procedure. Strain fields in critical regions of the specimens have been evaluated by digital image correlation (DIC) technique and compared with the results of finite element simulations. Considering different biaxial loading conditions it is possible to cover a wide range of stress triaxialities and Lode parameters in tension, shear and compression domains and consequently the newly proposed H-specimens facilitate a controlled study of damage and fracture at different stress states.
负应力三轴新损伤模型的进一步研究
DOI：
--
发表时间：
1993
期刊：
影响因子：
--
作者：
M. Zheng;C. Hu;Z. Luo;X. Zheng
通讯作者：
X. Zheng
影响因子：
9.8
作者：
Bruenig, Michael;Gerke, Steffen;Hagenbrock, Vanessa
通讯作者：
Hagenbrock, Vanessa